Not too sure... I'm going to try the new rears then I'll decide. Called the store where I purchased the Cantons and they're happy to extend my trial period. Amazing, I thought. I really got a good deal on the Canton. Anuways, we'll see.

Some might disagree but that some of what you are hearing is the inadequacy of MP3 recorded compressed all the way down to 192 KBPS. As Mark mentioned, purchase a Dianna Krall CD or some other famously well recorded CDs such as Pink Floyd's "Dark Side of the Moon" or my personal favorites for musical demos, Dire Straights' "Brothers in Arms" or the Dave Mathews and Tim Reynolds "live at Radio City" concert DVD (or BR). The first has a greater range of sounds and frequencies to evaluate but the second is such a pure recording of two guitars that it can bring tears to your eyes on a good system.

Also, take the time to listen to them over a longer period of time. Try not jumping back and forth between the Canton's and the M80s. I find that the brain takes time to adjust to new sounds/speakers. Every time I come home and listen to my M60s after listening to a car radio for a long drive, the M60s sound a bit off. After a few songs however, they return to amazing musical bliss. It does take a while to adjust.

Fiddle with the placement, source, etc as others have suggested and try listening to the M80s only for a couple of days. then try the Cantons again. Since you still have time, you can return whichever make you less happy in the end.

Good sound needs to equate to your personal happiness so whichever works best for that.

_________________________
With great power comes Awesome irresponsibility.

The problem with that is that audio memory is about 3 seconds. I proved this to myself during our listening tests between the M22s and M50s (ages ago), when I came back into the room after a little while and couldn't tell which speakers were on--without a sub.

The thing is, if you give yourself time to adjust, you're just testing one remembered perception against another. You're not really comparing the speakers (says the person who just did exactly what he's advising against...)

lol very confusing...It's funny when you get hooked on getting the best out something; as you can. I'm currently using Limewire to download music (not sure if Im allowed to mention)but just noticed that I could just put the type of codecs in the search area. Surprisingly, I'm finding a fair amount of good stuff.